Patent US2955088A successfully refreshed from Google Patents.
US2955088A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radioactive tracer
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1956-03-08
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Granted: 1960-10-04
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Expires: 1976-03-08
Abstract
No abstract record available.
Inventors
- 👤 Beerbower Alan
- 👤 Jr William H King
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:18
CPC Classifications
B; B01; B01J; B01J37/00; B01J37/34; B01J37/341; B01J23/00; B01J23/38; B01J23/48; B01J23/52; B01J35/00; B01J35/60; G; G21; G21G; G21G4/00; G21G4/04; G21G4/10; G21H; G21H5/00; G21H5/02; B01J35/61; B01J35/615; B01J35/64; B01J35/647
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
13 words
A RADIOACTIVE TRACER COMPRISING A SILICA-ALUMINA HYDROCARBON CONVERSION CATALYST PLATED WITH RADIOACTIVE GOLD
Claim 2
Dependent Claim
13 words
A RADIOACTIVE TRACER COMPRISING A SILICA-ALUMINA HYDROCARBON CONVERSION CATALYST PLATED WITH RADIOACTIVE GOLD
References Cited (Backward Citations)
US2307421A
Cited
US2407066A
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US2579243A
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US2592115A
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US2605219A
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US2698284A
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US2688098A
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US2671766A
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US2765410A
Cited
US2781297A
Cited
US2711484A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-10-04 | 1964-04-04 | 1964-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-10-04 | 1968-04-04 | 1968-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-10-04 | 1972-04-04 | 1972-10-04 | $7700.00 | Window Closed / Lapsed |